The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 07, 1981
Filed:
Nov. 13, 1979
Applicant:
Inventors:
Wolf Goldmann, Beckum, DE;
Wolfgang Rother, Stromberg, DE;
Assignee:
Krupp Polysius AG, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F27B / ; F26B / ;
U.S. Cl.
CPC ...
432 14 ; 106100 ; 432 18 ; 432 58 ;
Abstract
A process for the heat-treatment of fine-grained material using a multistage cyclone preheater and a revolving tubular kiln, additional fuel being introduced into a stage of the preheater which is selected according to the grain size, reactivity, moisture content, and incombustible constituent content of the fuel so that most of the fuel is almost completely burnt in the lowermost stage of the preheater. In this way, it is possible to obtain a high degree of calcination of the material before it enters the revolving tubular kiln with low preparation costs.